Microbial succession at weaning is guided by microbial metabolism of host glycans.

ABSTRACT: The weaning transition from a milk-based to a solid-food diet supports critical developmental changes to the intestinal microbiome and immune system. However, the specific microbial and host features that influence microbial succession at weaning are not well understood. Here, we developed a simple approach to investigate the complex dynamics of microbial succession during weaning by co-housing gnotobiotic mice colonized with the defined pre-weaning community PedsCom and the adult-derived consortium OMM12. As expected, co-housing PedsCom mice with OMM12 recapitulated microbial succession at weaning and induced immune system maturation in PedsCom mice. Unexpectedly, we found that the OMM12 microbes with the highest host glycan utilization profiles were the most adept colonizers of PedsCom m

SUBMITTER: Lubin JB 

PROVIDER: S-EPMC11870605 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature